This man does not know what he is talking about,
"Of those who had already been on the McDougall program for years, I had the following general observation: they donâ€™t look too healthy. People who subsist on grains and simple carbs at the expense of quality protein for any length of time tend to lose muscle mass, regardless of their exercise regimen. They are what we call â€śskinny fatâ€ś. Essentially, they have no lean tissue and yet they have surprisingly high body fat levels, despite their loose â€śskin and bonesâ€ť appearance. Lean body mass is a major defining criterion of good health; and these folks were sorely lacking. Excess carbohydrate turns to fat pretty easily, but you can neither build nor preserve muscle with it."
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I have been eating like this for 16 months, I had a body composition analysis done at the beginning of last week and was told I was 'thin muscular', with very little fat.